Adding distribution support

If you want to add support for your Linux distribution you will need an installer file which allows us to install dependencies per job. For examples look at: distro/installer/* files.

Since packages can have different names we provide an adaptation mapping for a base Ubuntu package (since development started with that) to your own distribution package name, for example adaptation files see: distro/adaptation/*. For now adaptation files must have the architecture dependent packages (ie, that ends with the postfix :i386) towards the end of the adaptation file.

You will also want to add a case for your distribution on sync_distro_sources() on the file lib/install.sh.